Title:
DETECTION CIRCUIT OF FAILURE OF LIGHT QUANTITY
Document Type and Number:
Japanese Patent JPS54931
Kind Code:
A
Abstract:
PURPOSE: To prevent the conversion to electric signal in error, by performing troubleshooting earlier, through the direct ditection of the failure in the quantity of light of a photo electric conversion circuit for such as a paper tape reader from the photo detecting elements for information conversion and through informing it to the opeator or system.
Inventors:
IZUME TAKATOMO
Application Number:
JP6644777A
Publication Date:
January 06, 1979
Filing Date:
June 06, 1977
Export Citation:
Assignee:
TOKYO SHIBAURA ELECTRIC CO
International Classes:
G06K7/10; (IPC1-7): G06K7/10
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